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Author : Lawrence Evans Wolinsky
Publisher :
ISBN 13 :
Total Pages : 174 pages
Book Rating : 4.:/5 (179 download)
Download or read book Biomimetic Approaches to Marine Natural Products written by Lawrence Evans Wolinsky and published by . This book was released on 1975 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Iman Mohammad Khalil
Publisher :
ISBN 13 :
Total Pages : 434 pages
Book Rating : 4.:/5 (935 download)
Download or read book Inspirations from Nature written by Iman Mohammad Khalil and published by . This book was released on 2015 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine natural products are becoming widely recognised as novel sources of drug leads. Their structural complexity has attracted synthetic chemists to explore new synthetic strategies and reagents. More recently, biosynthetic considerations of natural product has led to the proposal of biogenetic precursors that may lead to a biomimetic synthesis of a particular family of compounds. If successful, biomimetic syntheses may lead to the synthesis of multiple compounds in a family of natural products from simple precursors in a short, stepwise fashion. Thiaplidiaquinone A (2.1) and B (2.2) were synthesised in a 5-step biomimetic reaction sequence where the dimeric core was constructed by allowing a simple benzoquinone to dimerise and cyclise in the presence of base. The installation of the dioxothiazine ring system allowed for the synthesis of the two natural products alongside their corresponding dioxothiazine regioisomers 2.58 and 2.59. Cytotoxicity bioassays revealed that the position of the geranyl sidechains determined the mode of cell death (necrosis versus apoptosis) whereas the dioxothiazine ring regulated the potency of the compounds. The synthesised regioisomers were found to be more potent than their natural product counterparts with one, 2.58, exhibiting sub-panel selectivity towards melanoma cancer cell lines and was selected for acute toxicity testing by the NCI. A biomimetic synthesis of pyridoacridine alkaloids amphimedine (3.3), deoxyamphimedine (3.16) and demethyldeoxyamphimedine (3.11) from the structurally simpler styelsamine D (3.13) was developed. Addition of formaldehyde to the proposed biosynthetic precursor, styelsamine D, gave the two natural products 3.11 and 3.16 in a one pot synthesis where subsequent oxidation of 3.16 gave amphimedine. It was found that pre-functionalisation of the dopamine precursor to styelsamine D allowed for the synthesis of N-ethyl analogues of amphimedine and deoxyamphimedine as well as an N-benzyl analogue of deoxyamphimedine. Biomimetic considerations of the neoamphimedine, arnoamine and alpkinidine scaffold were also investigated and the results highlighted herein. Biological evaluation of the amphimedine, deoxyamphimedine and demethyldeoxyamphimedine at the NCI identified deoxyamphimedine as a strong cytotoxic agent, exhibiting sub-panel selectivity towards central nervous system cancer cell lines.
Author : Erwan Poupon
Publisher : John Wiley & Sons
ISBN 13 : 3527634762
Total Pages : 1024 pages
Book Rating : 4.5/5 (276 download)
Download or read book Biomimetic Organic Synthesis written by Erwan Poupon and published by John Wiley & Sons. This book was released on 2011-05-09 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this exciting 2 volume set, the approach and methodology of bio-inspired synthesis of complex natural products is laid out, backed by abundant practical examples from the authors' own work as well as from the published literature. Volume 1 describes the biomimetic synthesis of alkaloids. Volume 2 covers terpenes, polyketides, and polyphenols. A discussion of the current challenges and frontiers in biomimetic synthesis concludes this comprehensive handbook. Key features: Biomimetic Strategies have become an every-day tool not only for chemists but also for biologists. The synthetic applications are overwhelming, making this comprehensive 2 volume work a must-have for everyone working in the field. Unifying both synthetic and biosynthetic aspects, this book covers everything from organocatalysis and natural product synthesis to synthetic biology and even green chemistry.
Author : Xinming Zhang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (112 download)
Download or read book Biomimetic Assembly of Reactive Units for the Total Synthesis of Marine Natural Products from Dual Biosynthetic Origin written by Xinming Zhang and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work described in this PhD dissertation is dedicated to the total synthesis of intriguing natural product structures. Two distinct families of natural substances of marine origin have been targeted in this work: the halichonadins and the araiosamines.- With the halichonadins, we plunge into the marine terpene chemistry. Isolated from sponges of the genus Halichondria, two structures have particularly drawn our attention: halichonadins K and L. Indeed, besides two subunits of terpene origin (namely halichonadin C, a natural isonitrile) with an eudesmane skeleton, a central core of peptidic origin is also original (especially a carboxylic acid disubstituted piperidine ring). A part of the work is dedicated to understanding how, in nature, isonitrile natural products may be formed and may react. The experimental part is organized according to the two following topics:1- Devise an efficient and straightforward total synthesis of halichonadin C. A strategy starting from santonin has been studied and developed. The presence of an isopropyl pending group has attracted many synthetic problems. Anyhow, an advanced intermediate comprising the whole skeleton and the crucial nitrogen atom of the target has been reached and provides good hopes for the access to halichonadin C.2- Conceiving a strategy of the stereocontroled access to the central piperidine ring of halichonadins K and L. Several strategies have been evaluated including the recourse to double Michael additions and reactions inspired by Robinson's tropinone synthesis. The peptidic central core is now accessible in a limited number of steps.Most of the pieces of the puzzle are in our hands at the end of this PhD to secure a rapid access to the complex targets that constitutes halichonadins K and L.- The chapter dedicated to araiosamines (A-D, isolated from sponges of the genus Clathria) is exploratory and allows to propose promising strategies for a bio-inspired synthesis that constitutes true challenges for the organic chemists. One of the challenges to take up is to prepare highly reactive indole aldehyde units that could be foreseen as chemical equivalents of postulated biosynthetic intermediates. A method to generate in situ such units is studied. The first applications have been directed to the synthesis of “Discodermia pyridiniums” and appear to be promising towards the total synthesis of these molecules.The work conducted during this PhD take place in the framework of the “art of total synthesis”. But, in our strategies, the chemical understanding of biosynthetic pathways is never far away.
Author : Asunción Barbero
Publisher : MDPI
ISBN 13 : 3039284665
Total Pages : 182 pages
Book Rating : 4.0/5 (392 download)
Download or read book Synthetic and Biosynthetic Approaches to Marine Natural Products written by Asunción Barbero and published by MDPI. This book was released on 2020-03-24 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine natural products containing a heterocyclic moiety in their structure are present in a wide variety of sponges, corals, algae, and fungi. Many of them show important biological activities such as cytotoxic properties against several cancer cell lines. Their challenging chemical structures have attracted the attention of many researchers who have developed various synthetic approaches. This Special Issue presents some examples of new synthetic or biosynthetic methodologies to access this type of marine natural drug.
Author : K.F. Albizati
Publisher : Springer Science & Business Media
ISBN 13 : 3642768385
Total Pages : 334 pages
Book Rating : 4.6/5 (427 download)
Download or read book Synthesis of Marine Natural Products 2 written by K.F. Albizati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes five and six of Bioorganic Marine Chemistry differ from their predecessors in two respects - they deal exclusively with laboratory synthesis of marine natural products and they represent the effort of a single author and his associates. The rationale for these departures is readily perceived. For several decades organic synthesis has without doubt been the most spectacular branch of organic chemistry. While the late R.B. Woodward's dictum - organic compounds can undergo only four basic reactions: they can gain electrons; they can lose electrons; they can be transformed with acid or with base - is still true, the wealth and variety of available reagents which will accomplish chemical transformations has reached staggering proportions. Little wonder then, that synthetic methodology has achieved a high degree of predictability and total synthesis of natural products has been successfully directed toward ever more challenging targets. As for the second point, that of single authorship, multiple authorship would invariably have led to gaps and overlaps, thus making it difficult to assemble and assess recent research in a systematic and comprehens ive fashion.
Author : Poul Schever
Publisher : Elsevier
ISBN 13 : 0323151868
Total Pages : 407 pages
Book Rating : 4.3/5 (231 download)
Download or read book Marine Natural Products V2 written by Poul Schever and published by Elsevier. This book was released on 2012-12-02 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Natural Products: Chemical and Biological Perspectives, Volume II, reviews the state of knowledge in the chemistry and biology of marine natural products. It attempts to bring together timely and critical reviews that are representative of major current researches and that, hopefully, will also foreshadow future trends. The first three chapters of this volume deal with marine carotenoids, steroids, and diterpenoids. This is followed by a chapter that examines a single phylum, the Coelenterata, and its metabolites. The Coelenterata is an almost exclusively marine phylum of some 9000 described living species. Research predicts that the coelenterates will yield a rich harvest of organic metabolites. The final chapter, which focuses on 13C NMR spectroscopy for structural elucidation, reveals the power of this instrumental method especially when applied to the difficult problems of polyhalogenated marine metabolites.
Author : Bruce Malcolm Howard
Publisher :
ISBN 13 :
Total Pages : 648 pages
Book Rating : 4.:/5 (318 download)
Download or read book The Natural Products Chemistry of the Marine Red Algal Genus Laurencia Lamouroux written by Bruce Malcolm Howard and published by . This book was released on 1978 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dewan S. Bhakuni
Publisher : Springer Science & Business Media
ISBN 13 : 1402034849
Total Pages : 397 pages
Book Rating : 4.4/5 (2 download)
Download or read book Bioactive Marine Natural Products written by Dewan S. Bhakuni and published by Springer Science & Business Media. This book was released on 2006-06-30 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bioactive Marine Natural Products is the first book available that covers all aspects of bioactive marine natural products. It fills the void in the literature for bioactive marine natural products. The book covers various aspects of marine natural products and it is hoped that all the major classes of bioactive compounds are included. Different classes of marine organisms and the separation and isolation techniques are discussed. The chemistry and biology of marine toxins, peptides, alkaloids, nucleosides and prostanoids are discussed in detail. Biological, toxicological and clinical evaluations are also dealt with to ensure that the book may be adopted at any stage by any practicing organic chemist or biologist, working in academia or in R and D divisions of pharmaceutical companies. Each chapter in the book includes an abstract to highlight the major points discussed in the text and concluding remarks are given. References to books, monographs, review articles and original papers are provided at the end of each chapter.
Author : K.F. Albizati
Publisher : Springer Science & Business Media
ISBN 13 : 3642768350
Total Pages : 292 pages
Book Rating : 4.6/5 (427 download)
Download or read book Synthesis of Marine Natural Products 1 written by K.F. Albizati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volumes five and six of Bioorganic Marine Chemistry differ from their predecessors in two respects - they deal exclusively with labor atory synthesis of marine natural products and they represent the effort of a single author and his associates. The rationale for these departures is readily perceived. For several decades organic synthesis has without doubt been the most spectacular branch of organic chemistry. While the late R.B. Woodward's dictum - organic compounds can undergo only four basic reactions: they can gain electrons; they can lose electrons; they can be transformed with acid or with base - is still true, the wealth and variety of available reagents which will accomplish chemical transformations has reached staggering proportions. Little wonder then, that synthetic methodology has achieved a high degree of predictability and total synthesis of natural products has been successfully directed toward ever more challenging targets. As for the second point, that of single authorship, multiple authorship would invariably have led to gaps and overlaps, thus making it difficult to assemble and assess recent research in a systematic and comprehens ive fashion.
Author :
Publisher : Newnes
ISBN 13 : 0080951686
Total Pages : 5635 pages
Book Rating : 4.0/5 (89 download)
Download or read book Comprehensive Chirality written by and published by Newnes. This book was released on 2012-12-31 with total page 5635 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although many books exist on the subject of chiral chemistry, they only briefly cover chiral synthesis and analysis as a minor part of a larger work, to date there are none that pull together the background information and latest advances in one comprehensive reference work. Comprehensive Chirality provides a complete overview of the field, and includes chiral research relevant to synthesis, analytic chemistry, catalysis, and pharmaceuticals. The individual chapters in each of the 9 volumes provide an in depth review and collection of references on definition, technology, applications and a guide/links to the related literature. Whether in an Academic or Corporate setting, these chapters will form an invaluable resource for advanced students/researchers new to an area and those who need further background or answers to a particular problem, particularly in the development of drugs. Chirality research today is a central theme in chemistry and biology and is growing in importance across a number of disciplinary boundaries. These studies do not always share a unique identifying factor or subject themselves to clear and concise definitions. This work unites the different areas of research and allows anyone working or researching in chiral chemistry to navigate through the most essential concepts with ease, saving them time and vastly improving their understanding. The field of chirality counts several journals that are directly and indirectly concerned with the field. There is no reference work that encompasses the entire field and unites the different areas of research through deep foundational reviews. Comprehensive Chirality fills this vacuum, and can be considered the definitive work. It will help users apply context to the diverse journal literature offering and aid them in identifying areas for further research and/or for solving problems. Chief Editors, Hisashi Yamamoto (University of Chicago) and Erick Carreira (ETH Zürich) have assembled an impressive, world-class team of Volume Editors and Contributing Authors. Each chapter has been painstakingly reviewed and checked for consistent high quality. The result is an authoritative overview which ties the literature together and provides the user with a reliable background information and citation resource.
Author : Iain A. Anderson
Publisher : CRC Press
ISBN 13 : 9780367865269
Total Pages : 188 pages
Book Rating : 4.8/5 (652 download)
Download or read book Ocean Innovation written by Iain A. Anderson and published by CRC Press. This book was released on 2019-12-10 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomimetics is the idea of creating new technologies abstracted from what we find in biology. Ocean Innovation: Biomimetics Beneath the Waves seeks that technological inspiration from the rich biodiversity of marine organisms. Bringing both a biological and engineering perspective to the biomimetic potential of oceanic organisms, this richly illustrated book investigates questions such as: How can we mimic the sensory systems of sea creatures like sharks, sea turtles, and lobsters to improve our ability to navigate underwater? What can we do to afford humans the opportunity to go unnoticed by marine life? How can we diffuse oxygen from water to enable deep diving without the risk of decompression sickness? Each chapter explores an area where we, as divers and technologists, can benefit from understanding how animals survive in the sea, presenting case studies that demonstrate how natural solutions can be applied to mankind's engineering challenges.
Author : L. Reinhold
Publisher : Elsevier
ISBN 13 : 1483159809
Total Pages : 365 pages
Book Rating : 4.4/5 (831 download)
Download or read book Progress in Phytochemistry written by L. Reinhold and published by Elsevier. This book was released on 2016-07-01 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Phytochemistry, Volume 7, provides an overview of the state of knowledge in phytochemical research. This book is dedicated to Dr. E. C. Bate-Smith, CBE, one of the leading pioneers of the subject. Many of the topics in this volume represent aspects of phytochemical research which he has encouraged in others or to which he has himself contributed. The book begins with a chapter on chemotaxonomy. It considers in critical detail the contribution of isozyme electrophoresis to the understanding of plant variation at the population level. This is followed by separate chapters on carbonic anhydrase; biochemical developments in seed germination; the role of plant hormones in the control of the germination process; non-protein amino acids of plants; and the production of phenolics in plants in response to microbial disease. Subsequent chapters cover the terpenoid variation encountered within a single genus of marine algae, among species of Laurencia; and plants with hallucinogenic activity.
Author : Paul J. Scheuer
Publisher : Academic Press
ISBN 13 : 1483271927
Total Pages : 217 pages
Book Rating : 4.4/5 (832 download)
Download or read book Marine Natural Products written by Paul J. Scheuer and published by Academic Press. This book was released on 2013-10-22 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine Natural Products: Chemical and Biological Perspectives, Volume IV is a collection of papers that provides critical reviews, research findings, and new perspectives in the field of marine research. The book deals with the developments in marine natural products research. Chapters in the volume present papers discussing such subject as blue-green algal metabolites; guanidine derivatives and phenols; and the examination of the wide-ranging bases and far-reaching consequences of marine natural product research. Marine biologists, biochemists, and pharmacologists will find the book a good reference material.
Author : D. Faulkner
Publisher : Springer Science & Business Media
ISBN 13 : 146840802X
Total Pages : 422 pages
Book Rating : 4.4/5 (684 download)
Download or read book Marine Natural Products Chemistry written by D. Faulkner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the lectures presented at the NATO sponsored conference on "Marine Natural Products" held in Jersey, Channel Islands, U. K., October 12-17, 1976. The intent of the organising committee was to encourage a dialogue between organic chemists who study the metabolites of marine organisms and biolo gists, ecologists, and pharmacologists who study the effects of these metabolites on other organisms. A feature of the conference was the three workshop sessions on chemotaxonomy, applications of marine natural products, and chemical communication. The papers presented at the conference contain a mixture of original research in marine natural products and reviews of some of the more important subjects. The biologists were asked to present papers which could initiate new directions for marine natural products research. Their contributions to the meeting were warmly received by the chemists in the audience. We hope that this volume contains not only past and present research but a suggestion of future research trends. The conference was first suggested by Dr. E. D. Goldberg. The organising committee, Drs. G. Blunden, D. J. Faulkner, W.
Author : Ernesto Fattorusso
Publisher : Springer
ISBN 13 : 9789048138562
Total Pages : 1452 pages
Book Rating : 4.1/5 (385 download)
Download or read book Handbook of Marine Natural Products written by Ernesto Fattorusso and published by Springer. This book was released on 2012-10-23 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Handbook of Marine Natural Products" takes a fresh approach to describing the major themes of research in this rapidly developing field. This two volume reference work begins with a section that provides a taxonomic survey of the secondary metabolites of diverse marine life including microbes, algae, and invertebrates. This is followed by a demonstration of the techniques and strategies employed in modern structure elucidation of complex natural products. The natural roles of marine natural products are then explored in a series of focused chapters which include the topics of symbiosis, anti-predation and antifouling, chemical interactions, and defence against UV stress. Various routes which facilitate the understanding of marine natural product biosynthesis are subsequently explained and these are followed by an extensive set of chapters on the biomedical potential of marine natural products. The latter portion of this section considers the technologies and scientific disciplines necessary for advancing bioactive marine natural product lead compounds into actual pharmaceuticals. The reference work finishes with a selection of chapters describing marine toxins and their impact on public health and seafood resources. Final thoughts presented at the end of the second volume focus on the future of this field of investigation and discovery research. This publication is presented as a reference handbook and general concepts are emphasized and illustrated with numerous interesting examples, graphical information, and a comprehensive index. "Handbook of Marine Natural Products" introduces students who are at advanced undergraduate and entry graduate student levels to this fascinating multidisciplinary field. It is an ideal desk companion for courses focusing on this contemporary area.
Author : Pei-Qiang Huang
Publisher : John Wiley & Sons
ISBN 13 : 1118940210
Total Pages : 512 pages
Book Rating : 4.1/5 (189 download)
Download or read book Efficiency in Natural Product Total Synthesis written by Pei-Qiang Huang and published by John Wiley & Sons. This book was released on 2018-07-24 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uniting the key organic topics of total synthesis and efficient synthetic methodologies, this book clearly overviews synthetic strategies and tactics applied in total synthesis, demonstrating how the total synthesis of natural products enables scientific and drug discovery. • Focuses on efficiency, a fundamental and important issue in natural products synthesis that makes natural product synthesis a powerful tool in biological and pharmaceutical science • Describes new methods like organocatalysis, multicomponent and cascade reactions, and biomimetic synthesis • Appeals to graduate students with two sections at the end of each chapter illustrating key reactions, strategies, tactics, and concepts; and good but unfinished total synthesis (synthesis of core structure) before the last section • Compiles examples of solid phase synthesis and continuing flow chemistry-based total synthesis which are very relevant and attractive to industry R&D professionals
